ChrisQuick answer: How to put a simple if-then-else statement in one line of Python code? To put an if-then-else statement in one line, use Python’s ternary operator x if c else y. This returns the result of expression x if the Boolean condition c evaluates to True. Otherwise, the ternary operator returns the alternative expression … Read more
Problem Formulation 💬 Programming Challenge: Given a list of lists (nested list). Find and return the longest inner list from the outer list of lists. Here are some examples: [[1], [2, 3], [4, 5, 6]] 👉 [4, 5, 6] [[1, [2, 3], 4], [5, 6], [7]] 👉 [1, [2, 3], 4] [[[1], [2], [3]], [4, … Read more
The most basic ternary operator x if c else y consists of three operands x, c, and y. It is an expression with a return value. The ternary operator returns x if the Boolean expression c evaluates to True. Otherwise, if the expression c evaluates to False, the ternary operator returns the alternative y. Ternary … Read more
Use Python’s built-in min() function with the key argument to find the shortest string in a set. Call min(my_set, key=len) to return the shortest string in the set using the built-in len() function to determine the weight of each string—the shortest string has minimum length. 👉 Recommended Tutorial: How to Find the Shortest String in … Read more
Python Shortest String in NumPy Array To find the shortest string in a given NumPy array, say arr, you can use the min(arr, key=len) function that determines the minimum by comparing the length of the array elements using the len() function as a key for comparison. You can find more about the powerful min() function … Read more
You’ll never guess the most concise way to solve this problem… 🦄 Coding Challenge 💬 Challenge: Given a dictionary with string keys. Get the string key with the minimum number of characters, i.e., the shortest string. A variant of this problem is to get the length of the shortest string — I’ll give you a … Read more
Programming Challenge 💬 Challenge: Given a Python string. Find the longest substring for which holds that all of its characters are in alphabetical order so that the first character comes earlier in the alphabet than the second character, and so on. Here are three examples: You get the point. 🙂 Next, I’ll show you three … Read more
Expert Secret: Read More Programming Books Experts read books. Warren Buffett is said to read 1000 pages of annual reports every day. Buffett and his partner Charlie Munger became billionaires by spending 80% of their day reading. Buffett was once asked how to become smarter to which he responded: 📖 “Read 500 pages like this … Read more
To check your Python version in Google’s Colab, type !python ‐‐version using the exclamation mark ! operator in your Jupyter Notebook cell and click on the “Run” icon. After a couple of seconds an output like Python 3.9 will appear, depending on the version you’ve installed. In Jupyter notebooks, the exclamation mark ! executes commands … Read more
💬 Problem Formulation: Given a Python set. How to convert it to a tuple? And how to convert the tuple back to a set? There are three main ways: Method 1: To convert a Python set to a tuple, use the tuple(my_set) function. Method 2: To convert a Python tuple to a set, use the … Read more
Python Longest String in NumPy Array To find the longest string in a given NumPy array, say arr, you can use the max(arr, key=len) function that determines the maximum by comparing the length of the array elements using the len() function as a key for comparison. You can find more about the powerful max() function … Read more
Flatten to a 1D NumPy Array To flatten any NumPy array to a one-dimensional array, use the array.flatten() method that returns a new flattened 1D array. Here’s a simple example: Flatten NumPy Array Along Axis with reshape() To “flatten” a NumPy array along an axis, it’s often better to use the array.reshape() function. You can … Read more